Liquid-weigher.



G. D. LIVINGSTON.

LIQUID WEIGHER.

APPLICATION FILED 00?.19. 1914.

Patented Apr. 24,1913.

4 SHEETS-SHEET l.

Patented Apr. 24, 1917.

4 SHEETS-SHEET 2.

l0 5 a/ 0",; \7 a8 I l V 7 1' 2% lnvenroy" 6. D. LIVINGSTON.

LIQUID WEIGHER. LAPPLICATIQN FILED OCT. 19. 1914.

rge Lnvinssfon G. D. LIVINGSTON.

LIQUID WEIGHER. APPLICATION FILED OCT. 19. I914.

Patented Apr. 24,1917.

4 SHEETS-SHEET 3.

inveni'or WHRQSSQS (TQA G. D. LIVINGSTON.

LIQUID WEIGHER.

APPLICATION FILED ocr. 19. 1914.

Patented Apr. 24, 1917.

4 SHEETSSHEET 4.

jnvenf r onoaen n. Lrvmosron, or MINNEAEQLIS, mnvnnso'rn, Assrenoa 'roROBERT E. WHITACBE, or s'r; PAUL, mmnnso'rn.

' .moom-wmenna.

ispeciflcatiers Patent. Patented Apr. 2%, 1917, 7

Application filed October 19, 191%. Serial No. 867,434.

To all whom z't may concern:

Be' it known that I, Gnome D. 'L1v1No-- STON, a citizen of theUnitedfStates, residing at Minneapolis, in the county of Hennepin andState of- Minnesota, have invented certain new and useful' lmprovements1 n Liquid-Weighers, of which the following is a specificationinventionrelates to improvements in automatic liquid weighers desi edparticularly for weighing and registering the amount of feed water thatis supplied to' the boiler 01'' an engine. Its objects are to provideapparatus whichcan be interposed in the water supply system and whichwill automatically weigh the amount of water passing through it to theboiler or boiler feed. pump,.an,d which will be simple and strong inconstruction and efiicient in operation. In carrying out the invention Ihave devised apparatus whereby the inflow ing water is automaticallydistributed into charges of predetermined weight and the,

charges are delivered to a storage tank from which it can be fed to'theboiler or'other .place of use as desired.

More particularly the invention consists and claimed.

lnthe accompanying drawings showing an embodiment of the invention,

Figure 1 is a frontelevation of the improved apparatus partly brokenaway;

Fig. 2-is,a front elevation of the apparatus on an enlarged scale withsome parts broken away;

Fig. 3 is a rear elevation thereof partly brokenaway Fig. 4 is a sideview thereof also partly broken away; and t t Figs. 5 and 6 are detallspartly insection, of the two float lever'clutches, as seen from the yokebetween themso that the opposing inner sides of the float armsareexposed.

In the-drawings 2 represents a feed watersupply pipe havin a downturneddischarge elbow 3 Be ow the elbow is a tank having two'si nilarly shapedcompartments 4 and 5, res ectivel ,of equal size arranged symmetrical yside y side and separated b means of an upright partition wall S-Whieextends nearly to. the. top of the tank in line with the vertical axisof the elbow 3. Beneath this tank is a storage tank A having ivotallysuspende ten ing up through the compartment. The

valves and valve rods are arranged symmetrically on each 'side of thepartition Wa'1l6. A-swingin cylindrical spout 9 is from the elbow 3 bymeans of horizontal pivots 10 at front and rear, so that it willoscillate upon a transverse horizontal axis -and can be swung across the'top of the partition wall to direct the fiow of water'firstinto onecom-' partment and then into the other.

Secured to the top of the partition wall at the rear of the spout is abracket 11 having upstanding end lugs in which is mounteda longitudinalpin 12. .Rotatably supported upon this pin adjacent to the spout is acombined valve and spout lever having 'a cross arm 13, the ends of whichare pivotally connected with the tops of the valve rods 8, and a centralupstanding arm 14: carrying-a transverse pin .15, one end! of whichprojects into the space between two parallel guide lugs 16 upon therearof the spout whereby to move the spout, so that when the valve and spoutlever is oscillated, it will not only operate the valve rods but alsoswing the spout across the top of the partition 6. In this operation thevalves "7 will be alternately openedand closed, one of them being openedthrough the same movement of the lever which closes the other and viceversa, while the spout will be swung from the compartment inwhich thevalve is being pened to that in which vthe valve is being closed.

The spout andv valve lever is. operated the top this lever yoke has acentral up.

.wardly extending arm 18 upon which is a weight '19, so that whentheyoke stands with'the rod in vertical position it will be in unstableequilibrium and ready to'drop over to one sideor the other. The valveand s out lever is operated by this yoke through 't e medium of its pin15, one end of which,

as has been stated, stands between the, guide lugs 16 on the spout,while the other end extends through the opening in the lever yoke,

. where it will be engaged and moved by one tively,. of the lever yoke17 and in close proximity thereto. The, hub of each float arm-has aclutch lug 22 on its inner side in position to engage a co-acting clutchlug 23 upon the adjacent side of the hub of the lever yoke, so that whenthe float lever arm turns to carry its lug 22 against the lug 23 ,of theyoke, the yoke will be turned upon its axis untilthe arm 18 passesbeyond the vertical position, when the yoke will suddenly drop over'onthe other side under its own Weight. As it drops it will strike andcarry with it the pin 15 uponthe spout and valve lever, thereby' turningthe lever as above described. In Figs. 5 andG are shown the relativepositions of the clutch lugs upon the two float arms and the yoke whenthe.

yoke is in upright position, as shown in Fig,

3, the float arms being shown as seen from the yoke between them, sothat their inner sides are shown. I

Whentheapparatus is at the beginning of itsoperation, both tankcompartments will be. empty. :"lf then the-yoke lever is thrown overtoward one of the tank compart'ments, for. instance the compartment[nuinbered l, it will throw the valve and spout lever over in the samedirection, there by closing the valve 7 in the compartment 4 andswinging the-mouth of thespout so that it will discharge the flowingwater into that rising of the float will push the weighted yoke beyondits position of unstable .equilib compartment. As the water rises in theI compartment itwilllift the float therein and turn the float leverupwardly. As the floatlever rises its lug 22', bearing against the lug23 on the yoke, will in turn lift the yoke and turn it on the pin 12until-the float has nearly reachedthe top of the tank and the yokestands in the upright position shown in the: drawings. Then any furtherv 'riiim and cause it to drop quickly over toward the other tankcompartment 5. In its drop it will' s'trike and carry with it the pin15, thereby with a quick movement at once opening the valve in the fullcompartment 4 1 and closing the valvein the empty compartment '5, aswell as swinging the mouth of the spout across the partition wall fromcompertinent to the compartment 5. When the yoke'falls its weight willrest at first upon the pin 15, thereby holding down the spout and valvelever and keeping the valve closed in compartment 5, and when the yokeis gradually lifted from the pin by the rising float, the 'valve willbeheld down by the ever increasing pressure of the rising water.

1V hile the water is thus rising in the compartment 5 it will bedischarging from the compartment 1 through the valve 7 into the storagetank below, so that the float in this compartment will drop as the waterlevel recedes. As the float rises in compartment 5 it will graduallylift the yoke up to and beyond its upright position of unstableequilibrium, when the yoke will drop over again toward the nowemptycompartment with a sudden throw, thereby closing the valve in thatcompartment and opening the valve in the filled compartment 5, and atthe same time swinging the spout from the filled compartment to theempty compartment in the manner already described. This operation willcontinue automatically and continuously as long as the fiow of water isallowed to continue through the pipe 2. 'When the water in the storagetank rises to a certain level the supply through the-pipe 2 can be cutoff automatically or otherwise by suitable valve and fioat connections-(not 'shown)."

Thus thecharges of Water will always be equal in volume and weight, sothat to determine the weight of the water passing into the boiler it isonly necessary tolcalculate the weight of one of the. charges andmultiply it by the total number of charges. If desired the number ofcharges can be registered'upona dial 24, as shown in Fig. 1, by

means of suitable mechanism not shown, connected with the yoke by meansof a connecting rod 25, or in any other suitable way.

When the tank compartments for any reason are made shallow, the weightof the water upon the valves will be smaller than in the case of adeeper tank, so that it may be desirable to apply additional pressure tothe valve. For this purpose I have provided i as a supplementarypressure device a tube 26 partly filled with mercury or some-other heavyinstrumentalitythat will flow or run easil through the tube when thesame is tilte The tube is arranged across the apparatus and ispivotallyj-supported upon the :5

valve lever'13 by means of the arms 27, so that it will swing with thevalve lever. The

tube has at each end a bulb 28. Thus when the valve lever arm isinclined downward the tube will be inclined with .it and the mercurywill flow into the bulb at the lower end thereof thus exertin pressureon the valve rod 8 and the close valve. 1 claim as my invention;

1. In- .an automatic liquid wei'gher, the combination with a source ofliquid supply, of a pair of tanks having outlet valves, an

oscillatory spout adapted to direct the flow I of liquid into one orother of said tanks according to the direction in which it is swung,

an oscillatory valve lever operatively' con nected at its opposite endswith the valves in said respective tanks, a top weighted element havinga transversely extending opening at the top and a pivotal support at itslower end, a lateral pin carried by said valve lever and extending intothe opening in the top weighted element, an operative connec: tionbetween said lever and said spout, and floats actuated by the rise ofthe liquid in the tank which is being filled and operative to turn thetop weighted element until the center of gravity thereof is shifted tothe other side of its pivotal support, whereby the top weighted elementwill drop over and strike the pin upon the valve lever, thereby throwingsaid lever and swinging the spout.

2. In an automatic liquid weigher, the combination with a source ofliquid supply, of a pair of tanks having outlet valves, an

oscillatory spout adapted to direct the flow,

of liquid into one or the other of said tanks, according to thedirection in which it is swung, an oscillator} valve lever operative toopen and close the valves in said respective tanks, a top weighted leverhaving a pivotal support at its lower end, a pair.of

floats loosely mounted upon said pivotal support on opposite sides ofsaid top weighted lever, one of said floats working within one tank andthe other float within the other tank, cooperating means upon the floatsand Weighted lever, whereby said lever will be lifted and turned by 'oneor other of the floats as the float rises in its tank, an operativeconnection between said valve lever and the spout, and means carried bythe valve lever in position to be engaged by the weighted lever when thesame is turned so far that its center of gravity is shifted to the otherside of its pivotal support, whereby the valve lever is turned and themouth of the spout is shifted from one tank to the other.

3. In an automatic liquid weigher, the combination with a source ofliquid supply,

of a pair of tanks having outlet valves, an I oscillatory spout adaptedto direct the flow of liquid into one or other of said tanks accordingto the direction in which it is swung,

an oscillatory valve lever operative to open and close the valves insaid respective tanks and having an upstanding arm, a top weighted leverhaving a pivotal support at its lower end, and formed with atransversely extending opening, a lateral pin carried by said arm andengaging the spout at one end and extending into the opening in the topweighted lever at 'the other end, a pair of floats mounted on saidpivotal support and working within said tanks respectively', andcooperating clutch lugs upon the floats and top weighted lever wherebyeach float as it rises in the tank will engage and turn said lever,thereby causing said lever to drop over and strike said pin when it hasbeen turned so far as to shift its center of gravity to the other sideof its pivotal support, whereby to turn the valve lever and swmg thespout. 7

4:. In an automatic liquid weigher, the

combination with a source of liquid supply,.

of a pair of tanks having outlet valves, an

oscillatory spout adapted to direct theflow swung, an oscillatory valvelever operatively connected at its opposite ends with the valves in saidrespective tanks and having anu standing arm, a top-weighted skeleton yoe having a pivotal support at its lower end, a lateral pin carried bysaid arm and engaging the spout at one end and extending through theyoke at the other end, and means-actuated by the rise of the liquid inthe tank which is being filled for turning the yoke until its center ofgravity is shifted to the other side of its pivotal support-whereby theyoke will drop over and engage said pin, thereby turning the valve leverand swinging the spout.

In testimony whereof I aflix my, signature in presence of two witnesses.

enonen n. LIVINGSTON.

Witnesses ARTHUR P. LOTHROP, H. Swanson.

